Headgasket thickness

[Ridemywideglide]

How do I tell which thickness gasket I have in my kit.. Is there a way to measure it? I'm wanting to use a +20 but I'm unsure what I have now..

Thanks
Brad

 

[RacinDuallie]

3283337 = 10thous
3283339 = 20thous

I believe

 

[joefarmer]

3283337 = 10thous
3283339 = 20thous

I believe

Jeff those look correct. The part number will be stamped somewhere on the gasket, typically on the exposed metal surface.

brnaodn.